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Upward Revision of the Individual Masses in Alpha Cen: Implications for the Evolutionary State of the System

Published online by Cambridge University Press:  12 April 2016

C. Neuforge ,
D. Pourbaix ,
A. Noels  and
R. Scuflaire
C. Neuforge*
Affiliation:
Institut d’Astrophysique et de Géophysique, University of Liège, Belgium
D. Pourbaix
Affiliation:
Royal Observatory of Belgium
A. Noels
Affiliation:
Institut d’Astrophysique et de Géophysique, University of Liège, Belgium
R. Scuflaire
Affiliation:
Institut d’Astrophysique et de Géophysique, University of Liège, Belgium
*
1Chargé de Recherches of the Belgian Fund for Scientific Research

Abstract

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A new calibration of the α Cen system is presented. It shows that a theoretical model consistent with the observations and with the higher masses determined by Pourbaix (1999) can be obtained. Our model of α Cen A has a convective core. This could serve as a discriminant in a future asteroseismological calibration of the system.

Type
Part 8. Binary Stars
Information
International Astronomical Union Colloquium , Volume 170: Precise Stellar Radial Velocities , 1999 , pp. 335 - 339
Copyright
Copyright © Astronomical Society of the Pacific 1999

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